A new measurement finds the universe's teensiest particles weigh no more than one-millionth the mass of an electron.

Physicists have set a new upper limit on the mass of neutrinos. And the finding could poke a big hole in the Standard Model ...

Neutrinos are the most common particles in the universe. Not having an electric charge and being very light, they can move to ...

Scientists are inching closer to uncovering the mass of ghost particles, a mystery that has remained unsolved for decades.

A new estimate of the ghostly particle’s maximum possible mass brings physicists a tad closer to understanding the universe.

It is no heavier than 0.45 electron volts (eV) — less than one-millionth the mass of an electron, the next-lightest known ...

Scientists trying to discover the elusive mass of neutrinos, tiny "ghost particles" that could solve some of the universe's ...

Scientists from the KATRIN experiment have achieved the most precise upper limit ever recorded for the mass of the mysterious ...

The KATRIN experiment in Germany nearly halved the maximum possible mass for neutrinos, setting it at 0.45 electron volts.

The international KArlsruhe TRItium Neutrino Experiment (KATRIN) at the Karlsruhe Institute of Technology (KIT) has once ...

At the Sanford Underground Research Facility, the former Homestake gold mine, technicians and engineers are employing a ...